Patents by Inventor Stanley Arthur Harper

Stanley Arthur Harper has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Photographic method for printing particle pattern with improved adherence utilizing vanadates
    Patent number: 4089687
    Abstract: Method comprises (a) applying to a supporting surface a coating comprised of a photosensitizable water-soluble polymer, a soluble dichromate photosensitizer for the polymer, a soluble vanadate, and particles of the pattern material; (b) exposing the coating to a pattern of actinic radiation until exposed portions of the coating are rendered insoluble; (c) and flushing the exposed coating with an aqueous solvent to remove soluble portions of the coating, while retaining the insoluble portions of the coating in place.
    Type: Grant
    Filed: October 11, 1973
    Date of Patent: May 16, 1978
    Assignee: RCA Corporation
    Inventor: Stanley Arthur Harper
  • Method for improving adherence of phosphor-photobinder layer during luminescent-screen making
    Patent number: 3966474
    Abstract: The inner surface of a faceplate panel of a cathode-ray tube is cleaned and then precoated with water-insoluble, organic, polymeric particles, the precoating having a weight of 0.08 to 0.80 and preferably 0.20 to 0.40 mg/cm.sup.2. A subsequently applied phosphor-photobinder coating is exposed to a light image and then developed with a turbulent quantity of aqueous liquid. The phosphor-photobinder coating exhibits improved adherence during the developing step due to the presence of the precoating.
    Type: Grant
    Filed: November 25, 1974
    Date of Patent: June 29, 1976
    Assignee: RCA Corporation
    Inventor: Stanley Arthur Harper